The south wall was ripped off the gymnasium at Southwestern Middle School after a line of strong thunderstorms and high winds pounded Tippecanoe County just before 3 p.m. Sunday, Nov. 17, 2013, near Lafayette, Ind. (AP Photo/Journal &amp; Courier, John Terhune)

Associated Press

A Washington firefighter peers into the home of a fellow firefighter whose home was destroyed when a tornado swept through Washington, Ill., Sunday, Nov. 17, 2013. (AP Photo/Journal Star, David Zalaznik)

East Peoria resident Billy Vestal evacuates with his daughter, Lillian Vestal, 3, after a tornado damaged the area near Chestnut Road in East Peoria, Il.,Sunday, Nov. 17, 2013. Intense thunderstorms and tornadoes swept across the Midwest on Sunday, causing extensive damage in several central Illinois communities while sending people to their basements for shelter (AP Photo/Journal Star, Justin Wan)

Associated Press

Washington firefighters survey Devonshire Street on the North side of Washington, Ill., Sunday, Nov. 17, 2013. Intense thunderstorms and tornadoes swept across the Midwest, causing extensive damage in several central Illinois communities while sending people to their basements for shelter. (AP Photo/The Pantagraph, Steve Smedley)

Associated Press

Shirley Wolf says she hung on to her dog Sammy for dear life as a tornado destroyed her home at 306 Delshire in Pekin, Il.,Sunday, Nov. 17, 2013. Intense thunderstorms and tornadoes swept across the Midwest on Sunday, causing extensive damage in several central Illinois communities while sending people to their basements for shelter. (AP Photo/Journal Star, Fred Zwicky)

Associated Press

A tornado moves northeast Sunday, Nov. 17, 2013, two miles west of Flatville, Ill. The tornado damaged many farm buildings and homes on its way to Gifford, Ill., where scores of houses were devastated. (AP Photo/News-Gazette, Jessie Starkey)

Associated Press

A mattress is wrapped around a stripped tree in Washington, Ill., Sunday, Nov. 17, 2013. Intense thunderstorms and tornadoes swept across the Midwest, causing extensive damage in several central Illinois communities while sending people to their basements for shelter. (AP Photo/The Pantagraph, Steve Smedley)

Associated Press

A man stands near a pickup that belonged to farmer Curt Zehr after a tornado blew through Zehr's farm on Sunday, Nov. 17. 2013. The farm destroyed Zehr's home just outside Washington, Ill., and caused extensive damage in the town. Zehr's wife and son were at home at the time but were not injured. Dozens of Zehr's friends and neighbors helped look through the rubble. (AP Photo/David Mercer)

Associated Press

Friends and neighbors comb the rubble of Curt Zehr's home just outside Washington, Ill., on Sunday, Nov. 17, 2013. Zehr's wife and adult son took shelter in the basement at the base of the pictured stairs as a tornado destroyed their farm house. They were not injured. The tornado cut a path of destruction through Washington. (AP Photo/David Mercer)

Associated Press

A resident of Washington, Ill., surveys the damage to her home and neighbors after a tornado and severe thunderstorms swept through a portion of the town on Sunday, Oct. 17, 2013. (AP Photo/Peoria Journal Star, Ron Johnson)

Associated Press

A car sits halfway in a basement at a leveled home near Home Avenue and Hoffer Street in Kokomo Sunday, Nov. 17, 2013. (AP Photo / Kokomo Tribune, Kelly Lafferty)

Associated Press

The upper portion of a building sits in the middle of Home Avenue near the intersection at Hoffer St. Sunday, Nov. 17, 2013. (AP Photo / Kokomo Tribune, Kelly Lafferty)

Associated Press

A firefighter operates a chainsaw to clear a tree from a street in Brookport, Ill., after a tornado ripped through the town Sunday, Nov. 17, 2013. (AP Photo/Stephen Lance Dennee)

Washington, Ill., firefighters stand in the middle of Devonshire Street on the North side of Washington, Ill., after a tornado leveled at least fifty homes, Sunday, Nov. 17, 2013. High winds that followed the tornado are causing danger as homeowners and emergency workers try to search homes. (AP Photo/The Pantagraph, Steve Smedley)

A man walks through a damaged home in Gifford, Ill. on Sunday, Nov. 17, 2013. Intense thunderstorms and tornadoes swept across the Midwest, causing extensive damage in several central Illinois communities while sending people to their basements for shelter. (AP Photo/The News-Gazette, Robin Scholz)

Ray Baughman embraces family shortly after his home was destroyed by a tornado that left a path of devastation through the north end of Pekin, Il., Sunday, Nov. 17, 2013. Intense thunderstorms and tornadoes swept across the Midwest on Sunday, causing extensive damage in several central Illinois communities while sending people to their basements for shelter. (AP Photo/Journal Star, Fred Zwicky) MANDATORY CREDIT

A young boy takes a break from helping comb the rubble of Curt Zehr's home just outside Washington, Ill., on Sunday, Nov. 17, 2013. Zehr's wife and adult son took shelter in their basement as a tornado destroyed their farm house they were not injured. The tornado cut a path of destruction through Washington. (AP Photo/David Mercer)